Human Physiology
15th Edition
ISBN: 9781259864629
Author: Fox, Stuart Ira
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 6, Problem 6CP
Explain how the body detects changes in the osmolality of plasma and describe the regulatory
mechanisms by which a proper range of plasma osmolality is maintained.
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Chapter 6 Solutions
Human Physiology
Ch. 6 - Describe the distribution of fluid in the body.Ch. 6 - Describe the composition of the extracellular...Ch. 6 - List the subcategories of passive transport and...Ch. 6 - Explain what is meant by simple diffusion and list...Ch. 6 - Prob. 4CPCh. 6 - Prob. 5CPCh. 6 - Explain how the body detects changes in the...Ch. 6 - Prob. 7aCPCh. 6 - Prob. 7bCPCh. 6 - Prob. 7cCP
Ch. 6 - Prob. 8CPCh. 6 - Prob. 9aCPCh. 6 - Prob. 9bCPCh. 6 - Explain the relationship of the resting membrane...Ch. 6 - Prob. 10bCPCh. 6 - Prob. 11CPCh. 6 - Prob. 12CPCh. 6 - The movement of water across a plasma membrane...Ch. 6 - Which of these statements about the facilitated...Ch. 6 - Prob. 3RACh. 6 - Prob. 4RACh. 6 - Blood plasma has an osmolality of about 300 mOsm....Ch. 6 - Prob. 6RACh. 6 - The most important diffusible ion in the...Ch. 6 - Prob. 8RACh. 6 - Prob. 9RACh. 6 - Prob. 10RACh. 6 - Prob. 11RACh. 6 - Prob. 12RACh. 6 - Prob. 13RACh. 6 - Prob. 14RACh. 6 - Which of the following questions regarding second...Ch. 6 - Prob. 16RACh. 6 - Prob. 17RACh. 6 - Compare the resting membrane potential of a neuron...Ch. 6 - Prob. 19RACh. 6 - Prob. 20RACh. 6 - Prob. 21RACh. 6 - Prob. 22RACh. 6 - Using the principles of osmosis, explain why...Ch. 6 - Prob. 24RACh. 6 - Prob. 25RACh. 6 - Prob. 26RACh. 6 - Prob. 27RACh. 6 - Prob. 28RACh. 6 - Prob. 29RACh. 6 - Prob. 30RACh. 6 - Using only the information in this chapter,...Ch. 6 - Prob. 32RACh. 6 - Prob. 33RACh. 6 - Suppose a semipermeable membrane separates two...Ch. 6 - Prob. 35RACh. 6 - Prob. 36RACh. 6 - Use the Nernst equation and the ion concentration...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The osmolarity of plasma is maintained at about 300 mOsM. What would the osmolarity inside a red blood cell need to be to maintain osmotic equilibrium between the intracellular fluid and plasma? Give one specific reason why it is important to maintain plasma omolarity within a narrow range of values.arrow_forwardWhat are major factors that determine blood osmolality? The osmolality of 0.9% NaCl is ___________. How is the osmolality different from the molarity? Also, predict the effect of 1 L of 600 mOsm/L infusion of sucrose on patients RBC’s osmolality and volume, if previous osmolality of RBC’s was 250 mOsm/L, plasma volume – 3.6 L and RBC’s volume – 2.4 L.arrow_forwardExplain how a high concentration of sodium ions in theinterstitial fluid affects intracellular fluid levels.arrow_forward
- describe the mechanisms responsible for the medullary osmotic gradientarrow_forward1. There is a medical condition called Syndrome of Inappropriate Anti-Diuretic Hormone (SIADH) secretion, which can occur as a result of head trauma. Patients with this condition retain water and present with a volume imbalance. A) Name the type of volume imbalance and accompanying direction of changes in ICF and ECF volumes and osmolality. B) Calculate the changes in osmolality and volumes of extracellular and intracellular fluid compartments if 3 liters of water are retained by a patient with SIADH. You can assume that the patient’s initial volumes were ECF=14 L, ICF=28 L. And his initial body osmolality = 290 mOsM. Remember that the total solute in the ICF compartment is kept in place by the cell membrane barrier.arrow_forwardThe osmolarity of plasma is maintained at about 300 mOsM. What would the osmolarity inside a red blood cell need to be to maintain osmotic equilibrium between the intracellular fluid and plasma?arrow_forward
- Explain the Plasma osmolality ?arrow_forwardRenin is secreted in response to hypovolemia or to an increase in the osmolality of the blood. Provide three possible mechanisms by which these conditions may stimulate rennin secretion. What are the consequences of increased rennin secretion that lead to increased aldosterone secretion? Present this sequence of events. Why are angiotensin converting enzyme inhibitors (ACEIs) used as a common therapy for hypertension? How do they influence blood pressure? Are plasma levels of renin elevated or depressed in a patient with Conn’s disease? Why?arrow_forwardA 5% dextrose is isoosmotic to plasma. What effect would infusion of 1L of a 5% dextrose solution have on ECF and ICF volumes? How it would affect body fluid osmolality of a 70 kg individual and why?arrow_forward
- Describe how the body adjusts the urine volume and concentration when plasma osmolarity is higher than normal.arrow_forwardIndicate the relative fluid volume and solute composition of the fluid compartments of the bodyarrow_forwardBlood volume must be restored in a person who has lost large amounts of blood due to serious injury. This is often accomplished by infusing isotonic NaCl solution into the blood. Why is this more effective than infusing an isoosmotic solution of a penetrating solute, such as urea?arrow_forward
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